ABSTRACT
An information service model of subject librarians was proposed according to the semantic-linked data, changing retrieval methods of ontology technology users, and ontology.This model provides an open application in-terface by making use of SOA for the semantic-based information service, establishes the expanded semantic-linked relation between resources by constructing the driving engine and knowledge database based on linked data technolo-gy, and builds subject librarian platform, medical expert platform and subject user platform.Subject librarians can thus provide intelligent information retrieval service for medical users at semantic level under the help of medical experts.
ABSTRACT
<p><b>OBJECTIVE</b>To explore the cognitive function status and potential influence factors on cognitive function in hospitalized patients with chronic heart failure.</p><p><b>METHODS</b>Using a cross-sectional research design, CHF patients (n = 267, mean age (63.8 ± 9.4) years) were recruited from two care units-Heart Failure Care Unit and Intensive Care Unit of our hospital. Cognitive function status was evaluated by the Montreal Cognitive Assessment (MoCA) screen test.</p><p><b>RESULTS</b>Based on the MoCA score, 37.8% (101/267) patients suffered from cognitive impairment (score<26), especially on the three specific cognitive functions-memory, langue and executive capability. Multifactorial analysis showed that after controlling for other factors, there was a downward trend on cognitive function with aging (OR = 1.09, 95%CI:1.05-1.14) while higher left ventricular ejection fraction (LVEF) was related to better cognitive function (OR = 0.97, 95%CI:0.95-0.99); patients who took medicine regularly also had better cognitive function (OR = 3.71, 95%CI:1.40-10.91); cognitive function was better in patients with high level of social support compared those with low social support (OR = 0.92, 95%CI:0.88-0.96).</p><p><b>CONCLUSIONS</b>Incidence of cognitive impairment is high in hospitalized patients with chronic heart failure. Age, LVEF, whether taking medication regularly and social support are factors related to cognitive function in CHF patients.</p>